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Mathialagan SK, Parreiras SO, Tenorio M, Černa L, Moreno D, Muñiz‐Cano B, Navío C, Valvidares M, Valbuena MA, Urgel JI, Gargiani P, Miranda R, Camarero J, Martínez JI, Gallego JM, Écija D. On-Surface Synthesis of Organolanthanide Sandwich Complexes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308125. [PMID: 38610109 PMCID: PMC11200025 DOI: 10.1002/advs.202308125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/23/2024] [Indexed: 04/14/2024]
Abstract
The synthesis of lanthanide-based organometallic sandwich compounds is very appealing regarding their potential for single-molecule magnetism. Here, it is exploited by on-surface synthesis to design unprecedented lanthanide-directed organometallic sandwich complexes on Au(111). The reported compounds consist of Dy or Er atoms sandwiched between partially deprotonated hexahydroxybenzene molecules, thus introducing a distinct family of homoleptic organometallic sandwiches based on six-membered ring ligands. Their structural, electronic, and magnetic properties are investigated by scanning tunneling microscopy and spectroscopy, X-ray absorption spectroscopy, X-ray linear and circular magnetic dichroism, and X-ray photoelectron spectroscopy, complemented by density functional theory-based calculations. Both lanthanide complexes self-assemble in close-packed islands featuring a hexagonal lattice. It is unveiled that, despite exhibiting analogous self-assembly, the erbium-based species is magnetically isotropic, whereas the dysprosium-based compound features an in-plane magnetization.
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Affiliation(s)
| | - Sofia O. Parreiras
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience)Madrid28049Spain
| | - Maria Tenorio
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience)Madrid28049Spain
| | - Lenka Černa
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience)Madrid28049Spain
- Brno University of TechnologyBrno60190Czech Republic
| | - Daniel Moreno
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience)Madrid28049Spain
| | - Beatriz Muñiz‐Cano
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience)Madrid28049Spain
| | - Cristina Navío
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience)Madrid28049Spain
| | | | - Miguel A. Valbuena
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience)Madrid28049Spain
| | - José I. Urgel
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience)Madrid28049Spain
- Unidad de Nanomateriales AvanzadosIMDEA NanoscienceUnidad Asociada al CSIC por el ICMMMadrid28049Spain
| | | | - Rodolfo Miranda
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience)Madrid28049Spain
- Departamento de Física de la Materia Condensada and Condensed Matter Physics Center (IFIMAC)Universidad Autónoma de MadridCantoblancoMadrid28049Spain
| | - Julio Camarero
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience)Madrid28049Spain
- Departamento de Física de la Materia Condensada and Condensed Matter Physics Center (IFIMAC)Universidad Autónoma de MadridCantoblancoMadrid28049Spain
| | - José I. Martínez
- Instituto de Ciencia de Materiales de Madrid (ICMM)CSICCantoblancoMadrid28049Spain
| | - José M. Gallego
- Instituto de Ciencia de Materiales de Madrid (ICMM)CSICCantoblancoMadrid28049Spain
| | - David Écija
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience)Madrid28049Spain
- Unidad de Nanomateriales AvanzadosIMDEA NanoscienceUnidad Asociada al CSIC por el ICMMMadrid28049Spain
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2
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Arumugam S, Schwarz B, Ravichandran P, Kumar S, Ungur L, Mondal KC. Dipotassiumtetrachloride-bridged dysprosium metallocenes: a single-molecule magnet. Dalton Trans 2023; 52:15326-15333. [PMID: 37387215 DOI: 10.1039/d3dt01325a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
The present work describes the dynamic magnetic properties of the complex [(CpAr3)4DyIII2Cl4K2]·3.5(C7H8) (1), synthesized by employing a tri-aryl-substituted cyclopentadienyl ligand (CpAr3), [4,4'-(4-phenylcyclopenta-1,3-diene-1,2-diyl)bis(methylbenzene) = CpAr3H]. Each Dy(III)-metallocene weakly couples via K2Cl4, displaying slow relaxation of magnetization below 14.5 K under zero applied dc field via KD3 energy levels with an energy barrier of 136.9/133.7 cm-1 on the Dy sites. The single-ion axial anisotropy energy barrier is reduced by geometrical distortion due to the coordination of two chloride ions at each Dy centre.
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Affiliation(s)
- Selvakumar Arumugam
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, India.
| | - Björn Schwarz
- Institute for Applied Materials - Energy Storage Systems (IAM-ESS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
| | | | - Sunil Kumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, India.
| | - Liviu Ungur
- Department of Chemistry, National University of Singapore, Singapore.
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3
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De S, Mondal A, Ruan Z, Tong M, Layfield RA. Dynamic Magnetic Properties of Germole-ligated Lanthanide Sandwich Complexes. Chemistry 2023; 29:e202300567. [PMID: 37017588 PMCID: PMC10947301 DOI: 10.1002/chem.202300567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 04/06/2023]
Abstract
The first germole-ligated single-molecule magnets are reported, with contrasting properties found for the near-linear sandwich complexes [(η8 -COT)Ln(η5 -CpGe ]- , where Ln=Dy (1Dy ) or Er (1Er ), COT is cyclo-octatetraenyl and CpGe is [GeC4 -2,5-(SiMe3 )2 -3,4-Me2 ]2- . Whereas 1Er has an energy barrier of 120(1) cm-1 in zero applied field and open hysteresis loops up to 10 K, the relaxation in 1Dy is characterized by quantum tunneling within the ground state.
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Affiliation(s)
- Siddhartha De
- Department of Chemistry School of Life SciencesUniversity of SussexBrightonBN1 9QRUK
| | - Arpan Mondal
- Department of Chemistry School of Life SciencesUniversity of SussexBrightonBN1 9QRUK
| | - Ze‐Yu Ruan
- Key Laboratory of Bioinorganic and Synthetic Chemistry of the Ministry of Education School of ChemistrySun-Yat Sen UniversityGuangzhou510006P. R. China
| | - Ming‐Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of the Ministry of Education School of ChemistrySun-Yat Sen UniversityGuangzhou510006P. R. China
| | - Richard A. Layfield
- Department of Chemistry School of Life SciencesUniversity of SussexBrightonBN1 9QRUK
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Wang HL, Li YL, Zhu ZH, Lu XL, Liang FP, Zou HH. Anion-Manipulated Hydrolysis Process Assembles of Giant High-Nucleation Lanthanide-Oxo Cluster. Inorg Chem 2022; 61:20169-20176. [PMID: 36445983 DOI: 10.1021/acs.inorgchem.2c03924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Widespread concern has been raised over the synthesis of highly nucleated lanthanide clusters with special shapes and/or specific linkages. Construction of lanthanide clusters with specific shapes and/or linkages can be achieved by carefully regulating the hydrolysis of lanthanide metal ions and the resulting hydrolysis products. However, studies on the manipulation of lanthanide-ion hydrolysis to obtain giant lanthanide-oxo clusters have been few. In this study, we obtained a tetraicosa lanthanide cluster (3) by manipulating the hydrolysis of Dy(III) ions using an anion (OAc-). As far as we know, cluster 3 has the highest nucleation among all lanthanide-oxo clusters reported. In 3, two triangular Dy3O4 are oriented in opposite directions to form the central connecting axis Dy6(OH)8, which is in turn connected to six Dy3O4 that are oriented in different directions. Meanwhile, a sample of a chiral trinuclear dysprosium cluster (1) was obtained in a mixed CH3OH and CH3CN solvent and by replacing the anion in the reaction to Cl- ions. In this cluster, 1,3,4-thiadiazole-2,5-diamine (L2) is free on one side through π···π interactions and is parallel to the o-vanillin (L1)- ligand, thus resulting in a triangular arrangement. The arrangement of L2 affects the end group coordination in the cluster 1 structure through hydrogen bonding and induces the cluster to exhibit chirality. When the reaction solvent was changed to CH3OH, a sample of cluster 2, composed of two independent triangular Dy3 that have different end group arrangements, was obtained. Magnetic analysis showed that clusters 1 and 3 both exhibit distinctive single-molecule magnetic properties under zero-magnetic-field conditions. This study thus provides a method for the creation of chiral high-nucleation clusters from achiral ligands and potentially paves the way for the synthesis of high-nucleation lanthanide clusters with unique forms.
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Affiliation(s)
- Hai-Ling Wang
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
| | - Yun-Lan Li
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
| | - Zhong-Hong Zhu
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
| | - Xing-Lin Lu
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
| | - Fu-Pei Liang
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China.,Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Hua-Hong Zou
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
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5
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Li YL, Wang HL, Zhu ZH, Lu XL, Liang FP, Zou HH. Alkali metal-linked triangular building blocks assemble a high-nucleation lanthanoid cluster based on single-molecule magnets. iScience 2022; 25:105285. [PMID: 36304113 PMCID: PMC9593797 DOI: 10.1016/j.isci.2022.105285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/24/2022] [Accepted: 10/04/2022] [Indexed: 11/28/2022] Open
Abstract
The metallic central magnetic axes in high-nucleation clusters with complex structural connections tend to be disorganized and cancel each other out. Therefore, high-nucleation clusters cannot easily exhibit single-molecule magnets (SMMs) behaviors. Herein, we select a triple-core building block (Dy3K2, 1) and use linked diamagnetic alkali metal to form an open, spherical, high-nucleation cluster Dy12Na6 (3) with SMM behavior. Furthermore, by changing the reaction conditions, Dy6K2 (2) formed by linking two Dy3 by K(I) is obtained. High-resolution electrospray mass spectrometry of clusters 1–3 effectively captures the building block Dy3, and clusters 1 and 3 and Dy3 have high stability even with the increase in ion source energy. To the best of our knowledge, this is the first time that an SMM based on a high-nucleation cluster has been obtained by connecting magnetic primitives via diamagnetic metal ions. Dy12K6 is currently the highest nuclear ns-4f heterometallic SMM. We synthesized ns-4f cluster-based SMM by using diamagnetic alkali metal connection Clusters 1–3 are rare examples of ns-4f heterometallic clusters Dy12K6 is currently the highest nuclear ns-4f heterometallic SMM HRESI-MS is used to explore the formation of ns-4f high-nucleation clusters
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Affiliation(s)
- Yun-Lan Li
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China
| | - Hai-Ling Wang
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China
| | - Zhong-Hong Zhu
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China,Corresponding author
| | - Xing-Lin Lu
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China
| | - Fu-Pei Liang
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China,Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China,Corresponding author
| | - Hua-Hong Zou
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China,Corresponding author
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6
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Shtefanets VP, Shilov GV, Kunitsyna EI, Morgunov RB, Sanina NA, Aldoshin SM. Rare-Earth Metal (Pr(III), Тb(III), Ho(III), and Er(III)) Complexes with 2-Mercaptopyridine-N-oxide: Synthesis, Structures, and Properties. RUSS J COORD CHEM+ 2022. [DOI: 10.1134/s1070328422070089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sheikh JA, Jena HS, Konar S. Co 3Gd 4 Cage as Magnetic Refrigerant and Co 3Dy 3 Cage Showing Slow Relaxation of Magnetisation. Molecules 2022; 27:molecules27031130. [PMID: 35164395 PMCID: PMC8840112 DOI: 10.3390/molecules27031130] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/31/2022] [Accepted: 02/01/2022] [Indexed: 02/04/2023] Open
Abstract
Two structurally dissimilar 3d-4f cages having the formulae [(CoIII)3Gd4(μ3-OH)2(CO3) (O2CtBu)11(teaH)3]·5H2O (1) and [(CoIII)3Dy3(μ3-OH)4(O2CtBu)6(teaH)3]·(NO3)2·H2O (2) have been isolated under similar reaction conditions and stoichiometry of the reactants. The most important factor for structural diversity seems to be the incorporation of one μ3-carbonate anion in 1 and not in 2. Co atoms are in a +3 oxidation state in both complexes, as shown by the Bond Valence Sum (BVS) calculations and bond lengths, and as further supported by magnetic measurements. Co3Gd4 displays a significant magnetocaloric effect (−∆Sm = 25.67 J kg−1 K−1), and Co3Dy3 shows a single molecule magnet (SMM) behavior.
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Affiliation(s)
- Javeed Ahmad Sheikh
- Department of Chemistry, Government, College for Women, Constituent College of Cluster University, M. A. Road, Srinagar 190001, Jammu and Kashmir, India
- Department of Chemistry, IISER Bhopal, Bhopal By-Pass Road, Bhopal 462066, Madhya Pradesh, India; or
- Correspondence: (J.A.S.); (S.K.); Tel.: +91-7889872799 (J.A.S.)
| | - Himanshu Sekhar Jena
- Department of Chemistry, IISER Bhopal, Bhopal By-Pass Road, Bhopal 462066, Madhya Pradesh, India; or
- Department of Chemistry, Ghent University, Krijgslaan 281-S3 B, 9000 Ghent, Belgium
| | - Sanjit Konar
- Department of Chemistry, IISER Bhopal, Bhopal By-Pass Road, Bhopal 462066, Madhya Pradesh, India; or
- Correspondence: (J.A.S.); (S.K.); Tel.: +91-7889872799 (J.A.S.)
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8
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Castellanos E, Benner F, Demir S. Taming salophen in rare earth metallocene chemistry. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01331a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unprecedented series of salophen-bridged rare earth metallocenes, (Cp*2RE)2(μ-tBusalophen) (RE = Gd, Dy, and Y), has been crystallized. The solid and solution states have been unambiguously characterized by magnetic, spectroscopic and DFT methods.
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Affiliation(s)
- Ernesto Castellanos
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan, 48824, USA
| | - Florian Benner
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan, 48824, USA
| | - Selvan Demir
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan, 48824, USA
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9
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Wu J, Li XL, La Droitte L, Cador O, Le Guennic B, Tang J. Coordination anion effects on the geometry and magnetic interaction of binuclear Dy 2 single-molecule magnets. Dalton Trans 2021; 50:15027-15035. [PMID: 34609397 DOI: 10.1039/d1dt02071d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two new dimeric dysprosium(III) complexes, [Dy2(HL)2(SCN)2]·2CH3CN (1) and [Dy2(HL)2(NO3)2]·2CH3CN·2H2O (2), have been assembled using the H3L multidentate ligand (H3L = 2,2'-((((2-hydroxy-5-methyl-1,3-phenylene)bis(methylene))bis((pyridin-2-ylmethyl)azanediyl))bis(methylene))diphenol). The use of different coordination anions for the two complexes results in distinct coordination geometries of the metal sites. The Dy centers in complexes 1 and 2 display capped octahedron and triangular dodecahedron coordination geometries, respectively. Consequently, the two compounds exhibit distinct dc and ac magnetic properties. Complex 1 behaves as a single molecule magnet (SMM) while no SMM behavior is observed for complex 2. Although complexes 1 and 2 possess a similar core of Dy2O2, their different coordination anions lead to two distinct magnetic interactions, namely ferromagnetic and antiferromagnetic, respectively. Ab initio calculations reveal that these interactions may result from strong intramolecular dipolar couplings that are ferromagnetic for 1 but antiferromagnetic for 2, while exchange couplings are antiferromagnetic in both cases.
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Affiliation(s)
- Jinjiang Wu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China. .,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Xiao-Lei Li
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
| | - Léo La Droitte
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Olivier Cador
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Boris Le Guennic
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China. .,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
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10
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Dong L, Lu YB, Zhu SD, Wu JW, Zhang XT, Liao Y, Liu CM, Liu SJ, Xie YR, Zhang SY. A new family of dinuclear lanthanide complexes exhibiting luminescence, magnetic entropy changes and single molecule magnet behaviors. CrystEngComm 2021. [DOI: 10.1039/d0ce01477j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Four isomorphic and dinuclear lanthanide complexes were synthesized. Complexes EuIII and TbIII exhibit strong emissions, while GdIII shows the magnetocaloric effect and DyIII displays a single-molecule magnet.
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Ten-Coordinate Lanthanide [Ln(HL)(L)] Complexes (Ln = Dy, Ho, Er, Tb) with Pentadentate N3O2-Type Schiff-Base Ligands: Synthesis, Structure and Magnetism. MAGNETOCHEMISTRY 2020. [DOI: 10.3390/magnetochemistry6040060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A series of five neutral mononuclear lanthanide complexes [Ln(HL)(L)] (Ln = Dy3+, Ho3+ Er3+ and Tb3+) with rigid pentadentate N3O2-type Schiff base ligands, H2LH (1-Dy, 3-Ho, 4-Er and 6-Tb complexes) or H2LOCH3, (2-Dy complex) has been synthesized by reaction of two equivalents of 1,1′-(pyridine-2,6-diyl)bis(ethan-1-yl-1-ylidene))dibenzohydrazine (H2LH, [H2DAPBH]) or 1,1′-(pyridine-2,6-diyl)bis(ethan-1-yl-1-ylidene))di-4-methoxybenzohydrazine (H2LOCH3, [H2DAPMBH]) with common lanthanide salts. The terbium complex [Tb(LH)(NO3)(H2O)2](DME)2 (5-Tb) with one ligand H2LH was also obtained and characterized. Single crystal X-ray analysis shows that complexes 1–4 have the composition {[Ln3+(HL)−(L)2−] solv} and similar molecular structures. In all the compounds, the central Ln3+ ion is chelated by two interlocked pentadentate ligands resulting in the coordination number of ten. Each lanthanide ion is coordinated by six nitrogen atoms and four oxygen atoms of the two N3O2 chelating groups forming together a distorted bicapped square antiprismatic polyhedron N6O4 with two capping pyridyl N atoms in the apical positions. The ac magnetic measurements reveal field-induced single-molecule magnet (SMM) behavior of the two dysprosium complexes (with barriers of Ueff = 29 K at 800 Oe in 1-Dy and Ueff = 70 K at 300 Oe in 2-Dy) and erbium complex (Ueff = 87 K at 1500 Oe in 4-Er); complex 3-Ho with a non-Kramers Ho3+ ion is SMM-silent. Although 2-Dy differs from 1-Dy only by a distant methoxy-group in the phenyl ring of the ligand, their dynamic magnetic properties are markedly different. This feature can be due to the difference in long-range contributions (beyond the first coordination sphere) to the crystal-field (CF) potential of 4f electrons of Dy3+ ion that affects magnetic characteristics of the ground and excited CF states. Magnetic behavior and the electronic structure of Ln3+ ions of 1–4 complexes are analyzed in terms of CF calculations.
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Meng YS, Qiao YS, Yang MW, Xiong J, Liu T, Zhang YQ, Jiang SD, Wang BW, Gao S. Weak exchange coupling effects leading to fast magnetic relaxations in a trinuclear dysprosium single-molecule magnet. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01252d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we investigated the magnetic anisotropy and the influence of weak exchange interactions on the magnetic relaxations of a triangular type dysprosium single-molecule magnet.
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Affiliation(s)
- Yin-Shan Meng
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
- Beijing National Laboratory for Molecular Sciences
| | - Yu-Sen Qiao
- Beijing National Laboratory for Molecular Sciences
- Beijing Key Laboratory for Magnetoelectric Materials and Devices
- Peking University
- Beijing 100871
- P. R. China
| | - Mu-Wen Yang
- Beijing National Laboratory for Molecular Sciences
- Beijing Key Laboratory for Magnetoelectric Materials and Devices
- Peking University
- Beijing 100871
- P. R. China
| | - Jin Xiong
- Beijing National Laboratory for Molecular Sciences
- Beijing Key Laboratory for Magnetoelectric Materials and Devices
- Peking University
- Beijing 100871
- P. R. China
| | - Tao Liu
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory for NSLSCS
- School of Physical Science and Technology
- Nanjing Normal University
- Nanjing 210023
- P. R. China
| | - Shang-Da Jiang
- Beijing National Laboratory for Molecular Sciences
- Beijing Key Laboratory for Magnetoelectric Materials and Devices
- Peking University
- Beijing 100871
- P. R. China
| | - Bing-Wu Wang
- Beijing National Laboratory for Molecular Sciences
- Beijing Key Laboratory for Magnetoelectric Materials and Devices
- Peking University
- Beijing 100871
- P. R. China
| | - Song Gao
- Beijing National Laboratory for Molecular Sciences
- Beijing Key Laboratory for Magnetoelectric Materials and Devices
- Peking University
- Beijing 100871
- P. R. China
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Swain A, Sarkar A, Rajaraman G. Role of Ab Initio Calculations in the Design and Development of Organometallic Lanthanide-Based Single-Molecule Magnets. Chem Asian J 2019; 14:4056-4073. [PMID: 31557389 DOI: 10.1002/asia.201900828] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 09/23/2019] [Indexed: 11/11/2022]
Abstract
Single-molecule magnets based on lanthanides are very attractive due to their potential applications proposed in the area of microelectronic devices. Very recent advances in this area are due to the blend of conventional lanthanide chemistry with organometallic ligands, and several breakthrough achievements are attained with this combination. Ab initio methods based on multi-reference CASSCF calculations are playing a vital role in the design and development of such molecules. In this minireview, we aim to appraise various contributions in the area of organometallic lanthanide complexes (those containing lanthanide-carbon bonds) and describe how these robust wavefunction-based methods have played a constructive role not only in rationalizing the observed magnetic properties but also proven to be a potential predictive tool with some selected examples.
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Affiliation(s)
- Abinash Swain
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Arup Sarkar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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Cador O, Le Guennic B, Ouahab L, Pointillart F. Decorated Tetrathiafulvalene-Based Ligands: Powerful Chemical Tools for the Design of Single-Molecule Magnets. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900981] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Olivier Cador
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; Univ Rennes, CNRS; F-35000 Rennes France
| | - Boris Le Guennic
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; Univ Rennes, CNRS; F-35000 Rennes France
| | - Lahcène Ouahab
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; Univ Rennes, CNRS; F-35000 Rennes France
| | - Fabrice Pointillart
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; Univ Rennes, CNRS; F-35000 Rennes France
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15
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Loukopoulos E, Kostakis GE. Recent advances in the coordination chemistry of benzotriazole-based ligands. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.06.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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16
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Yao X, An G, Li Y, Yan P, Li W, Li G. Effect of nuclearity and symmetry on the single-molecule magnets behavior of seven-coordinated β-diketonate Dy(III) complexes. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2019.03.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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17
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Guo FS, Bar AK, Layfield RA. Main Group Chemistry at the Interface with Molecular Magnetism. Chem Rev 2019; 119:8479-8505. [PMID: 31059235 DOI: 10.1021/acs.chemrev.9b00103] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Innovative synthetic coordination and, increasingly, organometallic chemistry are at the heart of advances in molecular magnetism. Smart ligand design is essential for implementing controlled modifications to the electronic structure and magnetic properties of transition metal and f-element compounds, and many important recent developments use nontraditional ligands based on low-coordinate main group elements to drive the field forward. This review charts progress in molecular magnetism from the perspective of ligands in which the donor atoms range from low-coordinate 2p elements-particularly carbon but also boron and nitrogen-to the heavier p-block elements such as phosphorus, arsenic, antimony, and even bismuth. Emphasis is placed on the role played by novel main group ligands in addressing magnetic anisotropy of transition metal and f-element compounds, which underpins the development of single-molecule magnets (SMMs), a family of magnetic materials that can retain magnetization in the absence of a magnetic field below a blocking temperature. Nontraditional p-block donor atoms, with their relatively diffuse valence orbitals and more diverse bonding characteristics, also introduce scope for tuning the spin-orbit coupling properties and metal-ligand covalency in molecular magnets, which has implications in areas such as magnetic exchange coupling and spin crossover phenomena. The chemistry encompasses transition metals, lanthanides, and actinides and describes recently discovered molecular magnets that can be regarded, currently, as defining the state of the art. This review identifies that main group chemistry at the interface molecular magnetism is an area with huge potential to deliver new types of molecular magnets with previously unseen properties and applications.
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Affiliation(s)
- Fu-Sheng Guo
- Department of Chemistry, School of Life Sciences , University of Sussex , Brighton BN1 9QJ , United Kingdom
| | - Arun Kumar Bar
- Department of Chemistry, School of Life Sciences , University of Sussex , Brighton BN1 9QJ , United Kingdom
| | - Richard A Layfield
- Department of Chemistry, School of Life Sciences , University of Sussex , Brighton BN1 9QJ , United Kingdom
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18
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Wu DF, Liu Z, Ren P, Liu XH, Wang N, Cui JZ, Gao HL. A new family of dinuclear lanthanide complexes constructed from an 8-hydroxyquinoline Schiff base and β-diketone: magnetic properties and near-infrared luminescence. Dalton Trans 2019; 48:1392-1403. [PMID: 30623947 DOI: 10.1039/c8dt04384a] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Six phenoxo-O bridged dinuclear lanthanide(iii) complexes have been assembled utilizing the 2-[(4-nitrophenyl)imino]methyl-8-hydroxyquinoline (HL) and dibenzoylmethane (Hdbm) ligands: [Ln2(dbm)4L2] (Ln = Nd (1), Eu (2), Gd (3), Tb (4), Dy (5) and Er (6)). Complexes 1 and 6 exhibit the characteristic emission peaks of the corresponding Nd3+ and Er3+ ions, respectively. Meanwhile, the excitation wavelength (470 nm) for complex 1 is located in the visible-light region, confirming a practical application value. The studies on magnetic properties reveal that complex 3 features a magnetocaloric effect with a magnetic entropy change of -ΔSm = 14.36 J kg-1 K-1 at 4 K for ΔH = 7 T. What's more, the dynamic magnetic studies for complex 5 show that it exhibits slow magnetic relaxation behavior, typical of SMM behavior, resulting in an energy barrier of ΔE/kB = 75 K with the pre-exponential factor τ0 = 2.2 × 10-7 s. Meanwhile, this research demonstrates that the magnetic properties can be modulated by regulating the electron-donating/withdrawing effects of the substituents on the ligands.
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Affiliation(s)
- Dong-Fang Wu
- Department of Chemistry, Tianjin University, Tianjin, 300354, China.
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19
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Bala S, Huang GZ, Ruan ZY, Wu SG, Liu Y, Wang LF, Liu JL, Tong ML. A square antiprism dysprosium single-ion magnet with an energy barrier over 900 K. Chem Commun (Camb) 2019; 55:9939-9942. [DOI: 10.1039/c9cc05135j] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A stable and high-performance molecule displays a reversal barrier >900 K, which is the highest among square antiprismatic dysprosium single-ion magnets.
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Affiliation(s)
- Sukhen Bala
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Guo-Zhang Huang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Ze-Yu Ruan
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Si-Guo Wu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Yang Liu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Long-Fei Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Jun-Liang Liu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Ming-Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
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20
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Heras Ojea MJ, Maddock LCH, Layfield RA. Lanthanide Organometallics as Single-Molecule Magnets. TOP ORGANOMETAL CHEM 2019. [DOI: 10.1007/3418_2019_26] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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21
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Nehrkorn J, Veber SL, Zhukas LA, Novikov VV, Nelyubina YV, Voloshin YZ, Holldack K, Stoll S, Schnegg A. Determination of Large Zero-Field Splitting in High-Spin Co(I) Clathrochelates. Inorg Chem 2018; 57:15330-15340. [PMID: 30495930 DOI: 10.1021/acs.inorgchem.8b02670] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joscha Nehrkorn
- Department of Chemistry, Institute for Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
- Berlin Joint EPR Laboratory, Institut für Nanospektroskopie, Helmholtz-Zentrum Berlin für Materialien und Energie, Kekuléstr. 5, D-12489 Berlin, Germany
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Sergey L. Veber
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, Institutskaya str. 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova str. 1, 630090 Novosibirsk, Russia
| | - Liudmila A. Zhukas
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences, Institutskaya str. 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova str. 1, 630090 Novosibirsk, Russia
| | - Valentin V. Novikov
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova str. 28, 119991 Moscow, Russia
| | - Yulia V. Nelyubina
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova str. 28, 119991 Moscow, Russia
| | - Yan Z. Voloshin
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova str. 28, 119991 Moscow, Russia
| | - Karsten Holldack
- Institut für Methoden und Instrumentierung der Forschung mit Synchrotronstrahlung, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, D-12489 Berlin, Germany
| | - Stefan Stoll
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Alexander Schnegg
- Berlin Joint EPR Laboratory, Institut für Nanospektroskopie, Helmholtz-Zentrum Berlin für Materialien und Energie, Kekuléstr. 5, D-12489 Berlin, Germany
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, D-45470 Mülheim an der Ruhr, Germany
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22
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He M, Chen X, Bodenstein T, Nyvang A, Schmidt SFM, Peng Y, Moreno-Pineda E, Ruben M, Fink K, Gamer MT, Powell AK, Roesky PW. Enantiopure Benzamidinate/Cyclooctatetraene Complexes of the Rare-Earth Elements: Synthesis, Structure, and Magnetism. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00412] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Meng He
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany
| | - Xiao Chen
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany
| | - Tilmann Bodenstein
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
- Institut für Nanotechnologie, Karlsruher Institut für Technologie (KIT), Postfach 3640, 76021 Karlsruhe, Germany
| | - Andreas Nyvang
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Sebastian F. M. Schmidt
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany
| | - Yan Peng
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany
- Institut für Nanotechnologie, Karlsruher Institut für Technologie (KIT), Postfach 3640, 76021 Karlsruhe, Germany
| | - Eufemio Moreno-Pineda
- Institut für Nanotechnologie, Karlsruher Institut für Technologie (KIT), Postfach 3640, 76021 Karlsruhe, Germany
| | - Mario Ruben
- Institut für Nanotechnologie, Karlsruher Institut für Technologie (KIT), Postfach 3640, 76021 Karlsruhe, Germany
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23 rue du Loess, BP 43, Strasbourg CEDEX 2 F-67034, France
| | - Karin Fink
- Institut für Nanotechnologie, Karlsruher Institut für Technologie (KIT), Postfach 3640, 76021 Karlsruhe, Germany
| | - Michael T. Gamer
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany
| | - Annie K. Powell
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany
- Institut für Nanotechnologie, Karlsruher Institut für Technologie (KIT), Postfach 3640, 76021 Karlsruhe, Germany
| | - Peter W. Roesky
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany
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23
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Li LF, Zhang L, Xu Y, Zhu LL, Yang PP. Synthesis, crystal structure, and magnetic properties of a series of binuclear lanthanide compounds derived from the 4-Bromo-2-((quinolin-8-ylimino)methyl)phenol ligand. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.07.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Skvortsov GG, Cherkasov AV, Long J, Larionova J, Trifonov AA. Synthesis, structure and magnetic properties of the dinuclear complex [1,3-C6H4{NC(Ph)N(SiMe3)}2]3Dy2 coordinated by ansa-bis(amidinate) ligands with a m-phenylene linker. MENDELEEV COMMUNICATIONS 2018. [DOI: 10.1016/j.mencom.2018.09.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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25
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Day BM, Guo FS, Layfield RA. Cyclopentadienyl Ligands in Lanthanide Single-Molecule Magnets: One Ring To Rule Them All? Acc Chem Res 2018; 51:1880-1889. [PMID: 30091896 DOI: 10.1021/acs.accounts.8b00270] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The discovery of materials capable of storing magnetic information at the level of single molecules and even single atoms has fueled renewed interest in the slow magnetic relaxation properties of single-molecule magnets (SMMs). The lanthanide elements, especially dysprosium, continue to play a pivotal role in the development of potential nanoscale applications of SMMs, including, for example, in molecular spintronics and quantum computing. Aside from their fundamentally fascinating physics, the realization of functional materials based on SMMs requires significant scientific and technical challenges to be overcome. In particular, extremely low temperatures are needed to observe slow magnetic relaxation, and while many SMMs possess a measurable energy barrier to reversal of the magnetization ( Ueff), very few such materials display the important properties of magnetic hysteresis with remanence and coercivity. Werner-type coordination chemistry has been the dominant method used in the synthesis of lanthanide SMMs, and most of our knowledge and understanding of these materials is built on the many important contributions based on this approach. In contrast, lanthanide organometallic chemistry and lanthanide magnetochemistry have effectively evolved along separate lines, hence our goal was to promote a new direction in single-molecule magnetism by uniting the nonclassical organometallic synthetic approach with the traditionally distinct field of molecular magnetism. Over the last several years, our work on SMMs has focused on obtaining a detailed understanding of why magnetic materials based on the dysprosium metallocene cation building block {Cp2Dy}+ display slow magnetic relaxation. Specifically, we aspired to control the SMM properties using novel coordination chemistry in a way that hinges on key considerations, such as the strength and the symmetry of the crystal field. In establishing that the two cyclopentadienyl ligands combine to provide a strongly axial crystal field, we were able to propose a robust magneto-structural correlation for understanding the properties of dysprosium metallocene SMMs. In doing so, a blueprint was established that allows Ueff and the magnetic blocking temperature ( TB) to be improved in a well-defined way. Although experimental discoveries with SMMs occur more rapidly than quantitative theory can (currently) process and explain, a clear message emanating from the literature is that a combination of the two approaches is most effective. In this Account, we summarize the main findings from our own work on dysprosium metallocene SMMs, and consider them in the light of related experimental studies and theoretical interpretations of related materials reported by other protagonists. In doing so, we aim to contribute to the nascent and healthy debate on the nature of spin dynamics in SMMs and allied molecular nanomagnets, which will be crucial for the further advancement of this vibrant research field.
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Affiliation(s)
- Benjamin M. Day
- School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Fu-Sheng Guo
- School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Richard A. Layfield
- Department of Chemistry, School of Life Sciences, University of Sussex, Brighton BN1 9QJ, United Kingdom
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26
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Tian H, Ungur L, Zhao L, Ding S, Tang J, Chibotaru LF. Exchange Interactions Switch Tunneling: A Comparative Experimental and Theoretical Study on Relaxation Dynamics by Targeted Metal Ion Replacement. Chemistry 2018; 24:9928-9939. [PMID: 29697161 DOI: 10.1002/chem.201801523] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Indexed: 11/12/2022]
Abstract
The magnetic relaxation and magnetization blocking barriers of tailor-made homo- and heterodinuclear compounds [Dy2 (opch)2 (OAc)2 (H2 O)2 ]⋅MeOH (1) and [DyMn(opch)2 (OAc)(MeOH)(H2 O)2 ] (2), where H2 opch is (E)-N'-(2-hydroxy-3-methoxybenzylidene)pyrazine-2-carbohydrazide, were systematically investigated and the change in single-molecule magnet behavior originating from targeted replacement of one dysprosium site in the Dy2 compound with manganese was elucidated through a combination of experimental and theoretical studies. A detailed comparative study on these closely related model compounds revealed remarkable changes of the crystal-field splitting and anisotropy of the Dy site and the total exchange spectrum due to the replacement of Dy by Mn. The blocking barriers of these two compounds, which explain their different relaxation behaviors, were analyzed. The two Ising doublets arising from the magnetic interaction in the case of 1 are strongly uniaxial, with tunneling splittings smaller than 10-6 cm-1 , and this leads to magnetic relaxation at temperatures exceeding the exchange energy (2.14 cm-1 ), which involves transition via the excited states corresponding to local transitions on the excited doublet at the Dy site. The third and fourth exchange doublets in 2 (located at 2.16 and 3.25 cm-1 , respectively) show much larger tunneling splittings (of 10-4 and 10-3 cm-1 , respectively), and thus open an important path for magnetic relaxation.
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Affiliation(s)
- Haiquan Tian
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.,Shandong Provincial Key Laboratory, of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, P. R. China
| | - Liviu Ungur
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Lang Zhao
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Shuai Ding
- Shandong Juye County Coal Board, Juye, 274900, P.R. China
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Liviu F Chibotaru
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
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27
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Zhang WY, Chen P, Li HF, Zhang YQ, Yan PF, Sun WB. Dinuclear Dy 2 Single-Molecule Magnets: Functional Modulation on the Bridging Ligand and Different Relaxation Performances within the Single-Crystal to Single-Crystal System. Chem Asian J 2018; 13:1725-1734. [PMID: 29663704 DOI: 10.1002/asia.201800418] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/13/2018] [Indexed: 11/08/2022]
Abstract
Crystal structures, single-molecule magnetic behavior, and ab initio calculations of four new phenoxo-bridged dinuclear dysprosium complexes and their gadolinium(III) analogues are explored. Complexes [Dy2 (DMOMP)2 (DBM)4 ]2 ⋅CHCl3 (1; DMOMP=1-methyl-3,5-dimethoxy-4-hydroxybenzene, DBM=1,3-diphenylpropane-1,3-dione); [Dy2 (DMOAP)2 (DBM)4 ]2 ⋅CHCl3 (2; DMOAP=syringaldehyde); Dy2 (DMOEP)2 (DBM)4 (3; DMOEP=methyl syringate); and solvent-free Dy2 (DMOMP)2 (DBM)4 (4), which is obtained by the transformation of single crystal into single crystal from 1, have nearly identical core structures and only differ in the substituents at the para position of the phenol moieties of the bridging ligand. In this system, the electronic effects are efficiently implemented to significantly modify the ligand field strength and exchange coupling by modulating the substituents on the phenol backbone. The effective energy barrier (Ueff ) of magnetization reversal is improved significantly to fivefold magnitude, at most, and the hysteresis temperature up to 3.5 K by deliberately using the electron-withdrawing substituent to replace the electron-donating one. The origin of the two relaxation processes in 1 is mostly attributed to the existence of two molecules in one unit, which is illuminated by means of the transformation of single crystal into single crystal.
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Affiliation(s)
- Wan-Ying Zhang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Material Science, Heilongjiang University, 150080, Harbin, P.R. China
| | - Peng Chen
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Material Science, Heilongjiang University, 150080, Harbin, P.R. China
| | - Hong-Feng Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Material Science, Heilongjiang University, 150080, Harbin, P.R. China
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University, 210023, Nanjing, P.R. China
| | - Peng-Fei Yan
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Material Science, Heilongjiang University, 150080, Harbin, P.R. China
| | - Wen-Bin Sun
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Material Science, Heilongjiang University, 150080, Harbin, P.R. China.,Key Laboratory of Chemical Engineering Process, & Technology for High-efficiency Conversion, College of Heilongjiang Province, P.R. China
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28
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Gaggioli CA, Gagliardi L. Theoretical Investigation of Plutonium-Based Single-Molecule Magnets. Inorg Chem 2018; 57:8098-8105. [DOI: 10.1021/acs.inorgchem.8b00170] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Carlo Alberto Gaggioli
- Department of Chemistry, Chemical Theory Center and Supercomputing Institute, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455-0431, United States
| | - Laura Gagliardi
- Department of Chemistry, Chemical Theory Center and Supercomputing Institute, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455-0431, United States
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29
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Burns CP, Yang X, Wofford JD, Bhuvanesh NS, Hall MB, Nippe M. Structure and Magnetization Dynamics of Dy−Fe and Dy−Ru Bonded Complexes. Angew Chem Int Ed Engl 2018; 57:8144-8148. [DOI: 10.1002/anie.201803761] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/28/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Corey P. Burns
- Department of ChemistryTexas A&M University 3255 TAMU College Station TX 77843 USA
| | - Xin Yang
- Department of ChemistryTexas A&M University 3255 TAMU College Station TX 77843 USA
| | - Joshua D. Wofford
- Department of ChemistryTexas A&M University 3255 TAMU College Station TX 77843 USA
| | | | - Michael B. Hall
- Department of ChemistryTexas A&M University 3255 TAMU College Station TX 77843 USA
| | - Michael Nippe
- Department of ChemistryTexas A&M University 3255 TAMU College Station TX 77843 USA
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30
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Burns CP, Yang X, Wofford JD, Bhuvanesh NS, Hall MB, Nippe M. Structure and Magnetization Dynamics of Dy−Fe and Dy−Ru Bonded Complexes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803761] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Corey P. Burns
- Department of ChemistryTexas A&M University 3255 TAMU College Station TX 77843 USA
| | - Xin Yang
- Department of ChemistryTexas A&M University 3255 TAMU College Station TX 77843 USA
| | - Joshua D. Wofford
- Department of ChemistryTexas A&M University 3255 TAMU College Station TX 77843 USA
| | | | - Michael B. Hall
- Department of ChemistryTexas A&M University 3255 TAMU College Station TX 77843 USA
| | - Michael Nippe
- Department of ChemistryTexas A&M University 3255 TAMU College Station TX 77843 USA
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31
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Peng Y, Anson CE, Powell AK. A W-Shaped Ga-Dy-Dy-Dy-Ga Cluster: Synthesis, Characterization, and Magnetic Properties. Chempluschem 2018; 83:676-681. [PMID: 31950630 DOI: 10.1002/cplu.201800049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/22/2018] [Indexed: 11/09/2022]
Abstract
A W-shaped {Ga-Dy-Dy-Dy-Ga} coordination cluster, [Ga2 Dy3 (L)6 (MeO)2 (MeOH)3 ]⋅NO3 ⋅7 MeOH (1) with H2 L, (E)-2-(2-hydroxy-3-methoxy-benzylideneamino)phenol was synthesized, characterized, and the magnetic properties investigated. The magnetic measurements indicate that the compound shows single-molecule magnet (SMM) behavior under zero dc field. This suggests that the combination of GaIII ions and DyIII ions (4 f) is a successful strategy to assemble SMM clusters. The combination of these metal ions also offers prospects in dual functionality therapeutics for medical applications.
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Affiliation(s)
- Yan Peng
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76133, Karlsruhe, Germany.,Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Postfach 3640, 76021, Karlsruhe, Germany
| | - Christopher E Anson
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76133, Karlsruhe, Germany
| | - Annie K Powell
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76133, Karlsruhe, Germany.,Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Postfach 3640, 76021, Karlsruhe, Germany
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32
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Long J, Guari Y, Ferreira RA, Carlos LD, Larionova J. Recent advances in luminescent lanthanide based Single-Molecule Magnets. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.02.019] [Citation(s) in RCA: 150] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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33
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Guo M, Wu J, Cador O, Lu J, Yin B, Le Guennic B, Tang J. Manipulating the Relaxation of Quasi- D 4 d Dysprosium Compounds through Alternation of the O-Donor Ligands. Inorg Chem 2018; 57:4534-4542. [PMID: 29613778 DOI: 10.1021/acs.inorgchem.8b00294] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Three mononuclear DyIII complexes with the same auxiliary ligand Lz (2,4-diamino-6-pyridyl-1,3,5-triazine), [Dy(TTA)3Lz] (1Dy) (TTA = 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedionate), [Dy(acac)3Lz]·CH3OH·0.5H2O (2Dy) (acac = acetylacetonate), and [Dy(MQ)2Lz2]Br·CH3OH (3Dy) (HMQ = 2-methyl-8-quinolinol), have been synthesized through alteration of the ligands containing O donors. In all three complexes, the DyIII ions are eight-coordinate and submitted to pseudo- D4 d symmetry in the first coordination sphere. It is noteworthy that the TTA ligands in 1Dy are easily substituted by other bidentate capping ligands with O donors, leading to distinct magnetic properties, which were studied experimentally and via ab initio calculations. All three complexes were found to exhibit single-molecule magnet behavior with Ueff of 22 cm-1 (1Dy), 112 cm-1 (2Dy), and 56 cm-1 (3Dy) under zero applied dc field. Complex 1Dy demonstrates inferior SIM properties compared with 2Dy and 3Dy, which can be attributed to the strong electron-withdrawing effects of TTA ligands, as confirmed by theoretical calculations. However, butterfly-shaped magnetic hysteresis in 1Dy and 3Dy was observed at 1.9 K, while not in 2Dy.
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Affiliation(s)
- Mei Guo
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China.,University of Chinese Academy of Sciences , Beijing , 100049 , P. R. China
| | - Jianfeng Wu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China.,Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , 710072 , P. R. China
| | - Olivier Cador
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 , F-35000 Rennes , France
| | - Jingjing Lu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Bing Yin
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science , Northwest University , Xi'an , 710069 , P. R. China
| | - Boris Le Guennic
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 , F-35000 Rennes , France
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
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34
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Wen HR, Yang K, Liu SJ, Liang FY, Xie XR, Liu CM, Li YW. Chiral mononuclear Dy(III) complex based on pyrrolidine-dithiocarboxylate S-donors with field-induced single-ion magnet behavior. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.12.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Yao X, Yan P, An G, Shi C, Li Y, Li G. Single-ion magnets with D4d symmetry based on electron-donating β-diketonate Dy(iii) complexes. NEW J CHEM 2018. [DOI: 10.1039/c8nj00636a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Four single-ion magnets based on electron-donating β-diketonate Dy(iii) complexes have been designed and isolated to explore the magnetism–structure relationship.
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Affiliation(s)
- Xu Yao
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- People's Republic of China
| | - Pengfei Yan
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- People's Republic of China
| | - Guanghui An
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- People's Republic of China
| | - Chao Shi
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- People's Republic of China
| | - Yuxin Li
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- People's Republic of China
| | - Guangming Li
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- People's Republic of China
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36
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Long J, Lyubov DM, Mahrova TV, Cherkasov AV, Fukin GK, Guari Y, Larionova J, Trifonov AA. Synthesis, structure and magnetic properties of tris(pyrazolyl)methane lanthanide complexes: effect of the anion on the slow relaxation of magnetization. Dalton Trans 2018; 47:5153-5156. [DOI: 10.1039/c8dt00458g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis and magnetic properties of tris(pyrazolyl)methane lanthanide complexes.
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Affiliation(s)
- Jérôme Long
- Institut Charles Gerhardt
- Equipe Ingénierie Moléculaire et Nano-Objets
- Université de Montpellier
- ENSCM
- CNRS Place Eugène Bataillon
| | - Dimitry M. Lyubov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences
- Moscow
| | - Tatyana V. Mahrova
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Yannick Guari
- Institut Charles Gerhardt
- Equipe Ingénierie Moléculaire et Nano-Objets
- Université de Montpellier
- ENSCM
- CNRS Place Eugène Bataillon
| | - Joulia Larionova
- Institut Charles Gerhardt
- Equipe Ingénierie Moléculaire et Nano-Objets
- Université de Montpellier
- ENSCM
- CNRS Place Eugène Bataillon
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences
- Moscow
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37
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Li XL, Li J, Zhu C, Han B, Liu Y, Yin Z, Li F, Liu CM. An intense luminescent Dy(iii) single-ion magnet with the acylpyrazolonate ligand showing two slow magnetic relaxation processes. NEW J CHEM 2018. [DOI: 10.1039/c8nj03345e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new Dy(iii)-acylpyrazolonate complex displays both intense yellow-light emission and single-ion magnet behavior with two slow magnetic relaxation processes, acting as a potential bifunctional material.
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Affiliation(s)
- Xi-Li Li
- Henan Provincial Key Laboratory of Surface and Interface Science
- Zhengzhou University of Light Industry
- Zhengzhou
- P. R. China
| | - Junfeng Li
- Henan Provincial Key Laboratory of Surface and Interface Science
- Zhengzhou University of Light Industry
- Zhengzhou
- P. R. China
| | - Cancan Zhu
- Henan Provincial Key Laboratory of Surface and Interface Science
- Zhengzhou University of Light Industry
- Zhengzhou
- P. R. China
| | - Bing Han
- Henan Provincial Key Laboratory of Surface and Interface Science
- Zhengzhou University of Light Industry
- Zhengzhou
- P. R. China
| | - Yingfan Liu
- Henan Provincial Key Laboratory of Surface and Interface Science
- Zhengzhou University of Light Industry
- Zhengzhou
- P. R. China
| | - Zhigang Yin
- Henan Provincial Key Laboratory of Surface and Interface Science
- Zhengzhou University of Light Industry
- Zhengzhou
- P. R. China
| | - Fengcai Li
- Henan Provincial Key Laboratory of Surface and Interface Science
- Zhengzhou University of Light Industry
- Zhengzhou
- P. R. China
| | - Cai-Ming Liu
- Bejing National Laboratory for Molecular Sciences
- Institution of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
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38
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Zhu ZH, Ma XF, Wang HL, Zou HH, Mo KQ, Zhang YQ, Yang QZ, Li B, Liang FP. A triangular Dy3 single-molecule toroic with high inversion energy barrier: magnetic properties and multiple-step assembly mechanism. Inorg Chem Front 2018. [DOI: 10.1039/c8qi01069b] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Dy3 complex with the highest energy barrier of all reported triangular-shaped Ln3 single-molecule toroics.
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Affiliation(s)
- Zhong-Hong Zhu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry & Pharmacy of Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Xiong-Feng Ma
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry & Pharmacy of Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Hai-Ling Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry & Pharmacy of Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Hua-Hong Zou
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry & Pharmacy of Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Kai-Qiang Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry & Pharmacy of Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory for NSLSCS
- School of Physical Science and Technology
- Nanjing Normal University
- Nanjing 210023
- P. R. China
| | - Qi-Zhen Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry & Pharmacy of Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Bo Li
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang 473061
- P. R. China
| | - Fu-Pei Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry & Pharmacy of Guangxi Normal University
- Guilin 541004
- P. R. China
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials
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39
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Rasamsetty A, Das C, Sañudo EC, Shanmugam M, Baskar V. Effect of coordination geometry on the magnetic properties of a series of Ln2 and Ln4 hydroxo clusters. Dalton Trans 2018; 47:1726-1738. [DOI: 10.1039/c7dt00172j] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Tetra and di-nuclear Lanthanide hydroxo clusters have been synthesized and characterized magnetically.
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Affiliation(s)
| | - Chinmoy Das
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai
- India
| | - E. Carolina Sañudo
- Departament de Química Inorgànica i Institut de Nanociència i Nanotecnologia
- Universitat de Barcelona
- Barcelona
- Spain
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40
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Wu DF, Shen HY, Chu XY, Chang WJ, Zhao LH, Duan YY, Chen HH, Cui JZ, Gao HL. Modulating the magnetization dynamics of four phenoxo-O bridged Dy2 complexes based on a Schiff base derived from 8-hydroxyquinoline. NEW J CHEM 2018. [DOI: 10.1039/c8nj02888e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The quantum tunneling process in Dy-SMMs is suppressed by the application of a dc field.
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Affiliation(s)
- Dong-Fang Wu
- Department of Chemistry
- Tianjin University
- Tianjin
- China
| | - Hai-Yun Shen
- Department of Chemistry
- Tianjin University
- Tianjin
- China
| | - Xiao-Ya Chu
- Department of Chemistry
- Tianjin University
- Tianjin
- China
| | - Wen-Ju Chang
- Department of Chemistry
- Tianjin University
- Tianjin
- China
| | - Li-Hua Zhao
- Renai College of Tianjin University
- Tianjin
- China
| | - Yao-Yao Duan
- Department of Chemistry
- Tianjin University
- Tianjin
- China
| | | | - Jian-Zhong Cui
- Department of Chemistry
- Tianjin University
- Tianjin
- China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
| | - Hong-Ling Gao
- Department of Chemistry
- Tianjin University
- Tianjin
- China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
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41
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Kilpatrick AFR, Guo FS, Day BM, Mansikkamäki A, Layfield RA, Cloke FGN. Single-molecule magnet properties of a monometallic dysprosium pentalene complex. Chem Commun (Camb) 2018; 54:7085-7088. [DOI: 10.1039/c8cc03516d] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The pentalene-ligated dysprosium complex [(η8-Pn†)Dy(Cp*)] (1Dy) (Pn† = [1,4-(iPr3Si)2C8H4]2−) and its magnetically dilute analogue are single-molecule magnets, with energy barriers of 245 cm−1.
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Affiliation(s)
| | - Fu-Sheng Guo
- School of Chemistry
- The University of Manchester
- Manchester
- UK
| | | | - Akseli Mansikkamäki
- Department of Chemistry
- Nanoscience Center
- University of Jyväskylä
- Jyväskylä
- Finland
| | - Richard A. Layfield
- Department of Chemistry
- School of Life Sciences
- University of Sussex
- Brighton
- UK
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42
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Sasnovskaya VD, Kopotkov VA, Kazakova AV, Talantsev AD, Morgunov RB, Simonov SV, Zorina LV, Mironov VS, Yagubskii EB. Slow magnetic relaxation in mononuclear complexes of Tb, Dy, Ho and Er with the pentadentate (N3O2) Schiff-base dapsc ligand. NEW J CHEM 2018. [DOI: 10.1039/c8nj01928b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
AC measurements revealed field-induced single-ion magnet behavior of Dy and Er Kramers ion complexes. The properties of complexes were rationalized by superposition CF model.
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Affiliation(s)
- Valentina D. Sasnovskaya
- Institute of Problems of Chemical Physics of Russian Academy of Sciences
- Chernogolovka
- Russian Federation
| | - Vyacheslav A. Kopotkov
- Institute of Problems of Chemical Physics of Russian Academy of Sciences
- Chernogolovka
- Russian Federation
| | - Anna V. Kazakova
- Institute of Problems of Chemical Physics of Russian Academy of Sciences
- Chernogolovka
- Russian Federation
| | - Artem D. Talantsev
- Institute of Problems of Chemical Physics of Russian Academy of Sciences
- Chernogolovka
- Russian Federation
| | - Roman B. Morgunov
- Institute of Problems of Chemical Physics of Russian Academy of Sciences
- Chernogolovka
- Russian Federation
| | - Sergey V. Simonov
- Institute of Solid State Physics of Russian Academy of Sciences
- Chernogolovka
- Russian Federation
| | - Leokadiya V. Zorina
- Institute of Solid State Physics of Russian Academy of Sciences
- Chernogolovka
- Russian Federation
| | - Vladimir S. Mironov
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre “Crystallography and Photonics” of Russian Academy of Sciences
- Moscow
- Russian Federation
| | - Eduard B. Yagubskii
- Institute of Problems of Chemical Physics of Russian Academy of Sciences
- Chernogolovka
- Russian Federation
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43
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Chen PY, Shi XJ, Li T, Tian L. Two structural analogous TbIII-indazole-radical complexes with different dynamic magnetic behaviors. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.09.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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44
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Dickie CM, Laughlin AL, Wofford JD, Bhuvanesh NS, Nippe M. Transition metal redox switches for reversible "on/off" and "slow/fast" single-molecule magnet behaviour in dysprosium and erbium bis-diamidoferrocene complexes. Chem Sci 2017; 8:8039-8049. [PMID: 29568452 PMCID: PMC5853775 DOI: 10.1039/c7sc03380j] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 10/01/2017] [Indexed: 11/21/2022] Open
Abstract
We present an in-depth experimental study of a new class of heterometallic, redox-switchable single-molecule magnets (SMMs).
Single-molecule magnets (SMMs) are considered viable candidates for next-generation data storage and quantum computing. Systems featuring switchability of their magnetization dynamics are particularly interesting with respect to accessing more complex logic gates and device architectures. Here we show that transition metal based redox events can be exploited to enable reversible switchability of slow magnetic relaxation of magnetically anisotropic lanthanide ions. Specifically, we report anionic homoleptic bis-diamidoferrocene complexes of Dy3+ (oblate) and Er3+ (prolate) which can be reversibly oxidized by one electron to yield their respective charge neutral redox partners (Dy: [1]–, 1; Er: [2]–, 2). Importantly, compounds 1 and 2 are thermally stable which allowed for detailed studies of their magnetization dynamics. We show that the Dy3+[1]–/1 system can function as an “on”/“off” or a “slow”/“fast” redox switchable SMM system in the absence or presence of applied dc fields, respectively. The Er3+ based [2]–/2 system features “on”/“off” switchability of SMM properties in the presence of applied fields. Results from electrochemical investigations, UV-vis-NIR spectroscopy, and 57Fe Mössbauer spectroscopy indicate the presence of significant electronic communication between the mixed-valent Fe ions in 1 and 2 in both solution and solid state. This comparative evaluation of redox-switchable magnetization dynamics in low coordinate lanthanide complexes may be used as a potential blueprint toward the development of future switchable magnetic materials.
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Affiliation(s)
- Courtney M Dickie
- Department of Chemistry , Texas A&M University , 3255 TAMU , College Station , TX , 77843 USA .
| | - Alexander L Laughlin
- Department of Chemistry and Biochemistry , University of California , 607 Charles E. Young Drive East , Los Angeles , California 90095 , USA
| | - Joshua D Wofford
- Department of Chemistry , Texas A&M University , 3255 TAMU , College Station , TX , 77843 USA .
| | - Nattamai S Bhuvanesh
- Department of Chemistry , Texas A&M University , 3255 TAMU , College Station , TX , 77843 USA .
| | - Michael Nippe
- Department of Chemistry , Texas A&M University , 3255 TAMU , College Station , TX , 77843 USA .
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45
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Pointillart F, Cador O, Le Guennic B, Ouahab L. Uncommon lanthanide ions in purely 4f Single Molecule Magnets. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.12.017] [Citation(s) in RCA: 211] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Guo FS, Day BM, Chen YC, Tong ML, Mansikkamäki A, Layfield RA. A Dysprosium Metallocene Single-Molecule Magnet Functioning at the Axial Limit. Angew Chem Int Ed Engl 2017; 56:11445-11449. [PMID: 28586163 DOI: 10.1002/anie.201705426] [Citation(s) in RCA: 771] [Impact Index Per Article: 110.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Indexed: 01/24/2023]
Abstract
Abstraction of a chloride ligand from the dysprosium metallocene [(Cpttt )2 DyCl] (1Dy Cpttt =1,2,4-tri(tert-butyl)cyclopentadienide) by the triethylsilylium cation produces the first base-free rare-earth metallocenium cation [(Cpttt )2 Dy]+ (2Dy ) as a salt of the non-coordinating [B(C6 F5 )4 ]- anion. Magnetic measurements reveal that [2Dy ][B(C6 F5 )4 ] is an SMM with a record anisotropy barrier up to 1277 cm-1 (1837 K) in zero field and a record magnetic blocking temperature of 60 K, including hysteresis with coercivity. The exceptional magnetic axiality of 2Dy is further highlighted by computational studies, which reveal this system to be the first lanthanide SMM in which all low-lying Kramers doublets correspond to a well-defined MJ value, with no significant mixing even in the higher doublets.
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Affiliation(s)
- Fu-Sheng Guo
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Benjamin M Day
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Yan-Cong Chen
- Key Laboratory of Bioinorganic and Synthetic Chemistry of the Ministry of Education, School of Chemistry, Sun-Yat Sen University, Guangzhou, 510275, P.R. China
| | - Ming-Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of the Ministry of Education, School of Chemistry, Sun-Yat Sen University, Guangzhou, 510275, P.R. China
| | - Akseli Mansikkamäki
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35, Jyväskylä, 40014, Finland
| | - Richard A Layfield
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
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47
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Guo FS, Day BM, Chen YC, Tong ML, Mansikkamäki A, Layfield RA. A Dysprosium Metallocene Single-Molecule Magnet Functioning at the Axial Limit. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705426] [Citation(s) in RCA: 135] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Fu-Sheng Guo
- School of Chemistry; The University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Benjamin M. Day
- School of Chemistry; The University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Yan-Cong Chen
- Key Laboratory of Bioinorganic and Synthetic Chemistry of the Ministry of Education; School of Chemistry; Sun-Yat Sen University; Guangzhou 510275 P.R. China
| | - Ming-Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of the Ministry of Education; School of Chemistry; Sun-Yat Sen University; Guangzhou 510275 P.R. China
| | - Akseli Mansikkamäki
- Department of Chemistry; Nanoscience Center; University of Jyväskylä; P.O. Box 35 Jyväskylä 40014 Finland
| | - Richard A. Layfield
- School of Chemistry; The University of Manchester; Oxford Road Manchester M13 9PL UK
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48
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Molecular magnetism, quo vadis? A historical perspective from a coordination chemist viewpoint☆. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.03.004] [Citation(s) in RCA: 240] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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49
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Lim KS, Baldoví JJ, Jiang S, Koo BH, Kang DW, Lee WR, Koh EK, Gaita-Ariño A, Coronado E, Slota M, Bogani L, Hong CS. Custom Coordination Environments for Lanthanoids: Tripodal Ligands Achieve Near-Perfect Octahedral Coordination for Two Dysprosium-Based Molecular Nanomagnets. Inorg Chem 2017; 56:4911-4917. [DOI: 10.1021/acs.inorgchem.6b03118] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kwang Soo Lim
- Department of Chemistry, Korea University, Seoul 136-713, Republic of Korea
| | - José J. Baldoví
- Instituto de Ciencia Molecular, Universidad de Valencia, C/Catedrático José Beltrán
2, Paterna E-46980, Spain
| | - ShangDa Jiang
- Department of Materials, University of Oxford, 16 Parks Road, Oxford OX1 3PH, U.K
- Inorganic Chemistry,
College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Bong Ho Koo
- Department of Chemistry, Korea University, Seoul 136-713, Republic of Korea
| | - Dong Won Kang
- Department of Chemistry, Korea University, Seoul 136-713, Republic of Korea
| | - Woo Ram Lee
- Department of Chemistry, Korea University, Seoul 136-713, Republic of Korea
| | - Eui Kwan Koh
- Nano-Bio System Research Team, Korea Basic Science Institute, Seoul 136-713, Korea
| | - Alejandro Gaita-Ariño
- Instituto de Ciencia Molecular, Universidad de Valencia, C/Catedrático José Beltrán
2, Paterna E-46980, Spain
| | - Eugenio Coronado
- Instituto de Ciencia Molecular, Universidad de Valencia, C/Catedrático José Beltrán
2, Paterna E-46980, Spain
| | - Michael Slota
- Department of Materials, University of Oxford, 16 Parks Road, Oxford OX1 3PH, U.K
| | - Lapo Bogani
- Department of Materials, University of Oxford, 16 Parks Road, Oxford OX1 3PH, U.K
| | - Chang Seop Hong
- Department of Chemistry, Korea University, Seoul 136-713, Republic of Korea
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50
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Spivak M, Vogiatzis KD, Cramer CJ, Graaf CD, Gagliardi L. Quantum Chemical Characterization of Single Molecule Magnets Based on Uranium. J Phys Chem A 2017; 121:1726-1733. [DOI: 10.1021/acs.jpca.6b10933] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mariano Spivak
- Departament
de Quimica Fisica i Inorgánica, Universitat Rovira i Virgili, Marcel.lí Domingo s/n, E-43007 Tarragona, Spain
| | - Konstantinos D. Vogiatzis
- Department
of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Christopher J. Cramer
- Department
of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Coen de Graaf
- Departament
de Quimica Fisica i Inorgánica, Universitat Rovira i Virgili, Marcel.lí Domingo s/n, E-43007 Tarragona, Spain
- ICREA, Passeig Lluis Companys 23, 08010 Barcelona, Spain
| | - Laura Gagliardi
- Department
of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
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